Avaya Definity SI, Руководство по обслуживанию, Страница: 1811 / 2968

MAINT (EPN Maintenance Circuit Pack)
Issue 4 May 2002 10-1025 555-233-123
FAIL
(cont’d.) 2. If the -5 volt unit is good and this test continuously fails,
background maintenance automatically escalates to an
EPN Maintenance circuit pack Reset (Test #306).
Otherwise, you can manually invoke an EPN
Maintenance circuit pack Reset by issuing test
maintenance long and evaluating any generated error
codes from Test #306. If Test #306 passes, this test
should also PASS. Otherwise, use the following steps to
determine if the EPN Maintenance circuit pack, or the
serial link to the EPN Maintenance circuit pack, is
defective:
■
Duplicated Expansion Links:
1. Determine which serial link is the standby by
issuing the status system system technician
command.
2. Switch Expansion Links by entering set
expansion-link PCSS where PCSS is the
4-character Expansion Interface circuit pack
location for the Standby link.
3. Run the Short Test Sequence against the EPN
Maintenance circuit pack. If Test #106 still fails,
replace the EPN Maintenance circuit pack and
retest. Otherwise, follow the error routines for
any errors that are logged by this Short Test.
■
Single Expansion Interface Link Switch:
1. Replace the EPN Maintenance circuit pack and
invoke the Short Test Sequence.
2. If error persists, replace the EPN Expansion
Interface circuit pack, at a time when the EPN
can go down with minimal inconvenience.
3. If the error still persists, the problem is with the
actual serial link in A carrier backplane and not
with the EPN Maintenance circuit pack.
PASS The communications path to and from the EPN Maintenance
circuit pack is sane, and the EPN Maintenance circuit pack
can read and report the correct EPN cabinet type. The EPN
Maintenance circuit pack may still have problems related to
Tests #228, #229, #303, or #306.
Table 10-370. TEST #106 Sanity Handshake Test — Continued
Error
Code Test
Result Description/Recommendation
Continued on next page